1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_ISURFACE_H 18 #define ANDROID_ISURFACE_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <utils/Errors.h> 24 #include <binder/IInterface.h> 25 #include <utils/RefBase.h> 26 #include <ui/PixelFormat.h> 27 28 #include <hardware/hardware.h> 29 #include <hardware/gralloc.h> 30 31 namespace android { 32 33 typedef int32_t SurfaceID; 34 35 class IMemoryHeap; 36 class OverlayRef; 37 class GraphicBuffer; 38 39 class ISurface : public IInterface 40 { 41 protected: 42 enum { 43 REGISTER_BUFFERS = IBinder::FIRST_CALL_TRANSACTION, 44 UNREGISTER_BUFFERS, 45 POST_BUFFER, // one-way transaction 46 CREATE_OVERLAY, 47 REQUEST_BUFFER, 48 }; 49 50 public: 51 DECLARE_META_INTERFACE(Surface); 52 53 virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, int usage) = 0; 54 55 class BufferHeap { 56 public: 57 enum { 58 /* rotate source image 90 degrees */ 59 ROT_90 = HAL_TRANSFORM_ROT_90, 60 }; 61 BufferHeap(); 62 63 BufferHeap(uint32_t w, uint32_t h, 64 int32_t hor_stride, int32_t ver_stride, 65 PixelFormat format, const sp<IMemoryHeap>& heap); 66 67 BufferHeap(uint32_t w, uint32_t h, 68 int32_t hor_stride, int32_t ver_stride, 69 PixelFormat format, uint32_t transform, uint32_t flags, 70 const sp<IMemoryHeap>& heap); 71 72 ~BufferHeap(); 73 74 uint32_t w; 75 uint32_t h; 76 int32_t hor_stride; 77 int32_t ver_stride; 78 PixelFormat format; 79 uint32_t transform; 80 uint32_t flags; 81 sp<IMemoryHeap> heap; 82 }; 83 84 virtual status_t registerBuffers(const BufferHeap& buffers) = 0; 85 virtual void postBuffer(ssize_t offset) = 0; // one-way 86 virtual void unregisterBuffers() = 0; 87 88 virtual sp<OverlayRef> createOverlay( 89 uint32_t w, uint32_t h, int32_t format) = 0; 90 }; 91 92 // ---------------------------------------------------------------------------- 93 94 class BnSurface : public BnInterface<ISurface> 95 { 96 public: 97 virtual status_t onTransact( uint32_t code, 98 const Parcel& data, 99 Parcel* reply, 100 uint32_t flags = 0); 101 }; 102 103 // ---------------------------------------------------------------------------- 104 105 }; // namespace android 106 107 #endif // ANDROID_ISURFACE_H 108